Method of manufacturing packing for journals



UNITED STATES PATENT OFFICE.

HARRIETT B. DEVLAN, OF JERSEY CITY, NEW JERSEY.

METHOD OF MANUFACTURING PACKING FOR JOURNALS.

SPECIFICATION forming part of Letters Patent No. 514,350, dated February6, 1894.

Application filed June 22, 1893. Serial No. 478,507. (No specimens.)

To all whom it may concern:

Be it known that I, HARRIETT B. DEVLAN,

' Packing for. Journals, of which the following is a specification.

This invention relates to lubricating packings which contain particlesof sponge, and particularly that class of packings composed of bamboofiber, pieces of sponge, and a mineral substance, such as asbestus,steatite, or

, graphite, as in my Letters Patent No. 411,326,

dated September 17, 1889..

The object of my present invention is to increase the elasticity andefliciency of the sponge, and this I accomplish in the manner and by themeans hereinafter described and claimed.

In manufacturingthe packings for journals I mix about one pound ofpurified sponge, divided into small pieces,with about two pounds ofbamboo fiber, and about one and a half pounds of a mineral substance,such as asbestus, steatite, or graphite, and one pound of hair. Theseproportions will give satisfactory results, but I do not confine myselfto any special proportions, as they may be varied without afiecting thespirit of my invention. Before the sponge is mixed with the bamboo fiberand other substances mentioned, it is first thoroughly washed, and thencomminuted or divided into small pieces or particles and subjected tothe action of a solution of glycerine and caoutchouc, mingled togetherin water. The solution is preferably composed of about two gallons ofglycerine, six ounces of caoutchouc, and ten gallons of water; but theseproportions may be varied to suit the conditions required. This quantityof the solution is sufficient to saturate and is a vehicle for theproper supply of oil or other lubricant.

A packing made according to my invention is designed to be supplied atproper times with oil or other lubricant, and the sponge being elasticacts as a fountain to supply the oil to the journal or axle.

Having thus described my invention, what I claim is 1. In themanufacture of packings for journals containing pieces of sponge, and amineral substance, the process or method herein described of preparingthe sponge, which consists in comminuting the same, subjecting it to theaction of glycerine and caoutchouc, and then mixing the pieces of spongewith mineral substances, substantially as described.

2. The method herein described of manufacturing packing for journals,which consists The fiber of the bam.

in comminuting sponge, subjecting it to the action of glycerine andcaoutchouc, and mixing the same with bamboo fiber, hair, and a mineralsubstance, substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

HARRIETT B. DEVLAN.

Witnesses:

WILLIAM S. DEVLAN, J OHN J. DEVLAN.

